Fire-door fastener.



EATBNTBD Am. 14, 190s.

No. 884,937.v

R. EJLAWRENGB. V Pmnoo PASTBNBR. APPLICATION FILED AUGt 8, 1907.

ATTORNEYS struction and special arrangement of the vention.

RUssnLL B. LAWRENon, orA New reen, N;

4:eine noon reisrnnnn.

Specicaton of Letterslfatent.

, Application filed August', 1907. Serial No. 387,633. l

To all whom 'it mag/"concern:

Be itkn'own that I, RUSSE-LL BQLAW- BENQ-n, a citizen of the UnitedStates, and a resident of the `city of New York, borough of Queens, inthe county of Queens and State of New York, have invented a new andlin-- proved Fire-Dolor Fastener, of which the followingis a full,clear, and exact description.

This invention relates to means for securing a lire door in lockedposition, sovas to prevent a iirefrom spreading in the interior of abuilding. When doors of this character-,are subjected to -excessive heatarising from a fire, the doors Warp and shrink transversely of theirlength, thereby forming an aperture between the edge of the door and itscasing orits adjacent door section, and enabling the Haines to spread bypassing through said aperture.

This invention has Jfor its object, there fore, to provide means adaptedto hold "a lire door against warping or shrinking in Width so as toprevent the tire from spreading beyond said door. v

` Other objects relating to the specific cony several parts constitutingmy invention Will be understood from the following description an'accoinpanying drawings, in Which draw-v ing-s like characters ofreference indicate like parts throughout the views, and in which l'igure1 is a perspective view oi a double door provided with my invention gFig.' 2 is a transverse sectional view or' the meeting edges of the twosections of the door, taken on the line 2--2 of Fig. 3; Fig. 3 is anenlarged side elevation of a part of the device shown in Fig. l; andFig. 4 is a perspective view of a keeper used in carrying out my in- Asillustrated in the accompanying dravv-l ings, l and 2 represent thesections of a double door provided with hinges 3, the plates-,of whichextend in opposite directions' and arr-:fastened to a door section andcasing 4 respectively. The free edge of one .of the door sections isprovidedfwith an astragal. 5 which overlaps the corresponding edge o theY opposite door section so as to cover thejoint t between said edges., Acarrying bar 6 is'. mounted upon the free edge of one of the doorsections, and is adapted to slide inl 'opened guidewa 7 preferablyattached to the as` .tragal of the door. 4The carrying bar t3 'isoonnected in any suitable manner with alatch S preferably by means of aloop 9 formed on thel carrying bar which engages the free end 10 of saidlatch. A latch spindle il o-rother suitable device is connected. withthe latch and adapted thereby to move the carrying bar 6 up and down inits guidevvay 7.

Mounted on the carrying ber 6 are latches l?. provided. with apertures13 adapted to en# gage keepers le secured/to the opposite door sectionl, or to -a door casing. The keepers le are provided with base plates 15having ing screws the keepers are secured in their places. The'keepersle are also provided with open-recesses' adapted to .receive the latchesland hold the latches and the doors attached thereto against any outwardmovement.l In addition to preventing any outward movement of the freeend of the door section, .the latches 12 bear at their ,outer portionagainst the side of the keepers and prevent the door shrinking orwarping transversely of its length, tlie hinges 3 at the same timeholding the'op osite edge of the door against warping orgs rinking inthe saine di-y rection.

When .theLdevieewis in. use, the doors are raisirig-. \the carrying bar6 by means ot the latch SHor'otlierwise, AWhich raisestheflatches 'l2landreleases the upper' t i portion of the` latches. from engagement withthe recesses l7`of the keepers? vThe doors apertures 16, bymeans ofwhich and engag' y are closed iindlocked by a 'reverse or downwardmovement ofthe vcarrying bar v6 after the doors have 4'been'closed,thereby again bringing lthe upperV .portion the latches l2 intoengagement with therecesses 17 vof the kee ersp aving thus described myinvention, what .l claim as new and desire to secure by Letters Patentis: I

'1. rIhe combination with a rire door, oi' an astragal, a carrying barhaving a sliding engagement with said door, latches `.mounted on saidbar, and keepers comprising a base plate and an oli-set recessed lipadapted to engage and hold said latches against a strain trans verselvof said door.

.Z. 'lhe combination with a ire door, of an astragal, n carrying harhaving aslidng en*` gagenlex'xtwi'tlgsold,door, a latch mollllted on lname to this specification i-n the prseno of sali 121001# :mi adaptpd tot; p a1s,t.lesx`nid gar," two subscribng'witnesses. an eepers com nsmga. ase p nte an an Y off-setj recessed p adapted toegtrzge and RUSSELL BLA RENCE -5 hold said latch against a. strain tlransvorsely Witnesses:

of said door. l ROBERT W. Hmom,

In testimony 'whereof I lmve signed my Evl-mAnn B.M-AnsuALL.

